US4069887A - Steerable drive shaft - Google Patents

Steerable drive shaft Download PDF

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Publication number
US4069887A
US4069887A US05/768,490 US76849077A US4069887A US 4069887 A US4069887 A US 4069887A US 76849077 A US76849077 A US 76849077A US 4069887 A US4069887 A US 4069887A
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US
United States
Prior art keywords
double
drive shaft
universal joint
wheels
angle
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
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US05/768,490
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English (en)
Inventor
Josef Koepfli
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Inventio AG
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Inventio AG
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Filing date
Publication date
Application filed by Inventio AG filed Critical Inventio AG
Application granted granted Critical
Publication of US4069887A publication Critical patent/US4069887A/en
Anticipated expiration legal-status Critical
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D7/00—Steering linkage; Stub axles or their mountings

Definitions

  • the present invention relates to a steerable drive shaft for motor vehicles equipped with wheels each driven by a double-universal joint.
  • Another and more specific object of the present invention contemplates obtaining a considerable reduction in the production costs by simplifying the construction of a steerable drive shaft, and as concerns the utilization of the angular positioning or angling of both double-universal joints the same result should be achieved.
  • An additional object of the present invention is to provide an arrangement of the character described wherein it is possible to obtain a still further reduction in the spacing between the axles or shafts of the front and rear wheels, which arrangement is of significance for tractors intended to be coupled with harvesting machines and equipped with such type drive shafts, and which spacing of the axles could not heretofore be made smaller due to the position of the front differential housing which was governed by space considerations.
  • the steerable drive shaft for motor vehicles and having wheels driven by means of a respective double-universal joint is manifested by the features that a further single-universal joint is arranged at the longitudinal center line of the vehicle and in spaced relationship from the connection line extending through the inner joints of the double-universal joint.
  • This single-universal joint is coupled by means of a respective drive shaft with the double-universal joints.
  • the angle between each drive shaft and the connection line extending through the inner joints of the double-universal joints is preferably equal to one-half of the difference between the different size deflection or turning angles of both wheels with maximum turning or deflection thereof.
  • the angular disposition of both double-universal joints at the inside of the curve and the outside of the curve is the same with maximum turning of the wheels.
  • one of the drive shafts is preferably driven by a double helical gear arrangement or miter gearing consisting of a pinion and spur bevel gear, wherein the axes of the pinion and the spur bevel gear arranged upon said one drive shaft intersect one another at an angle which is smaller than 90° by the difference of the aforementioned angle enclosed between such drive shaft and the connection line.
  • FIG. 1 Describing now the drawing, in the single FIGURE there is schematically illustrated a vehicle chassis of, for instance, a tractor having a four-wheel or all-wheel drive.
  • the front wheels 1 and 2 of the tractor are turned or deflected towards the right, so that the tractor can travel through a curve about the curve center point 3.
  • This curve center point 3 is located at a spacing a from the vehicle center or longitudinal center line 4 upon the extension of the rear shaft or axle 5.
  • the spacing of the axles between the front wheels 1, 2 and rear wheels 15, 16 has been designated by reference characters b and the wheel spacing by reference character c.
  • a single-universal joint 6 is arranged at the region of the front axle at the vehicle center line 4. Extending from such single-universal joint 6 are two drive shafts 7 and 8 which drive the double-universal joints 9 and 10, by means of which there are driven in turn the wheels 1 and 2.
  • a connection line 13 extends through the joints 11 and 12 of both wheels 1 and 2 formed by the axle journals or steering knuckles and at the same time through the inner joints 9a and 10a of both double-universal joints 9 and 10. Both of the drive shafts 7 and 8 together with the connection line 13 enclose an angle ⁇ .
  • the single-universal joint 6 is located in front of this connection line 13 at the vehicle center line 4, and it is for this reason that the angle ⁇ is of the same magnitude at both sides thereof.
  • the magnitude of the angle ⁇ preferably amounts to 1/2 ( ⁇ - ⁇ ), i.e. is equal to one-half of the difference of the different turning or deflection angles of both wheels with maximum deflection, because then the angular disposition or angling of both double-universal joints 9 and 10 at the outside of the curve and the inside of the curve is the same with maximum wheel deflection, as will be apparent from the showing of the drawing.
  • the angle ⁇ 8°, i.e. one-half of the difference between 60° and 44°.
  • the angular disposition or angling of the double-universal joint 10 located at the inside of the curve becomes smaller in relation to the turning angle of the wheel 2 by the angle ⁇ and the angular dispositon or angling of the double-universal joint 9 located at the outside of the curve in relation to the turning angle of the wheel 1 becomes larger by the angle ⁇ . In this way the possible angular disposition of both double-universal joints is completely utilized.
  • the drive shaft 7 located at the left side is driven by a spur bevel gear 14 which meshes with a pinion 15.
  • a spur bevel gear 14 which meshes with a pinion 15.
  • a further advantage which is realized from the described construction resides in the fact that the axle spacing b between the front wheels 1, 2 and rear wheels 15, 16 is smaller if one starts from the position of the front axle-differential, not shown in the drawing, but located at the position of the universal joint 6, through which there would extend a non-angled straight drive shaft, and the position of such differential is fixed for reasons of space. Due to the angled drive shafts 7 and 8 the front wheels therefore can be positioned somewhat further towards the rear in comparison to their position when using a straight drive shaft.
US05/768,490 1976-02-17 1977-02-14 Steerable drive shaft Expired - Lifetime US4069887A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH1889/76 1976-02-17
CH188976A CH591968A5 (de) 1976-02-17 1976-02-17

Publications (1)

Publication Number Publication Date
US4069887A true US4069887A (en) 1978-01-24

Family

ID=4220965

Family Applications (1)

Application Number Title Priority Date Filing Date
US05/768,490 Expired - Lifetime US4069887A (en) 1976-02-17 1977-02-14 Steerable drive shaft

Country Status (8)

Country Link
US (1) US4069887A (de)
JP (1) JPS5297524A (de)
CH (1) CH591968A5 (de)
DE (1) DE2706229A1 (de)
FR (1) FR2341448A1 (de)
GB (1) GB1518922A (de)
IT (1) IT1078205B (de)
SU (1) SU1015819A3 (de)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4249631A (en) * 1978-05-13 1981-02-10 Deere & Company Axle for motor vehicles
US4545458A (en) * 1983-07-25 1985-10-08 Trac 4 Inc. Drive mechanism for steering wheels of vehicle
US5667032A (en) * 1994-12-22 1997-09-16 Kamlukin; Igor Self propelled mower with low radius pivoted rear wheel steering
EP1356962A1 (de) * 2002-04-24 2003-10-29 CNH Italia S.p.A. Gefederte, angetriebene Vorderachse für Fahrzeuge
EP1393935A1 (de) * 2002-08-29 2004-03-03 CNH Italia S.p.A. Gefederte, angetriebene Vorderachse für Fahrzeuge, insbesondere für Traktoren
US20050280241A1 (en) * 2004-01-28 2005-12-22 Giorgio Bordini Suspended, articulated and powered front axle for work vehicle
JP2019205380A (ja) * 2018-05-29 2019-12-05 株式会社クボタ 作業機

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5825U (ja) * 1981-06-26 1983-01-05 株式会社クボタ 車輌の前輪駆動装置
NL8203381A (nl) * 1982-08-31 1984-03-16 Lely Nv C Van Der Trekker.
GB2409441A (en) * 2003-12-23 2005-06-29 Agco Gmbh & Co Suspension arrangement for proper steering angle for agricultural vehicles
IT201600087598A1 (it) * 2016-08-26 2018-02-26 Same Deutz Fahr Italia S P A Sistema motrice a singola-ruota-sospesa-sterzante

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3157395A (en) * 1961-12-07 1964-11-17 Ford Motor Co Vehicle suspension construction
US3580350A (en) * 1969-01-23 1971-05-25 Gen Motors Corp Vehicle power unit and drive train
US3703215A (en) * 1969-06-24 1972-11-21 Fuji Heavy Ind Ltd Independent front suspension system for a front wheel drive automobile

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR684566A (fr) * 1929-05-31 1930-06-27 Manning And Company Automobiles à roues motrices à l'avant
US2053869A (en) * 1932-05-28 1936-09-08 Haltenberger Jules Independent wheel springing
FR996606A (fr) * 1945-04-30 1951-12-24 Citroen Sa Andre Dispositif de transmission pour traction avant
FR1050625A (fr) * 1951-03-12 1954-01-08 Usines D Automobiles Essieu moteur pour véhicules automobiles
FR1202646A (fr) * 1958-03-18 1960-01-12 Auto Union Gmbh Mécanisme pour la propulsion dite par <traction avant> de véhicules automobiles
DE1152904B (de) * 1960-12-20 1963-08-14 Walter Barabas Vorrichtung zum Lenken von mehrachsigen Kraftfahrzeugen
FR1519189A (fr) * 1967-04-14 1968-03-29 Expl De L Usine A D N De Canne Essieu moteur pour véhicule, notamment véhicule automobile ainsi que les véhicules automobiles pourvus d'un essieu conforme ou similaire

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3157395A (en) * 1961-12-07 1964-11-17 Ford Motor Co Vehicle suspension construction
US3580350A (en) * 1969-01-23 1971-05-25 Gen Motors Corp Vehicle power unit and drive train
US3703215A (en) * 1969-06-24 1972-11-21 Fuji Heavy Ind Ltd Independent front suspension system for a front wheel drive automobile

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4249631A (en) * 1978-05-13 1981-02-10 Deere & Company Axle for motor vehicles
US4545458A (en) * 1983-07-25 1985-10-08 Trac 4 Inc. Drive mechanism for steering wheels of vehicle
US5667032A (en) * 1994-12-22 1997-09-16 Kamlukin; Igor Self propelled mower with low radius pivoted rear wheel steering
EP1356962A1 (de) * 2002-04-24 2003-10-29 CNH Italia S.p.A. Gefederte, angetriebene Vorderachse für Fahrzeuge
US20050161272A1 (en) * 2002-04-24 2005-07-28 Giorgio Bordini Suspended, articulated and powered front axle for work vehicles
EP1393935A1 (de) * 2002-08-29 2004-03-03 CNH Italia S.p.A. Gefederte, angetriebene Vorderachse für Fahrzeuge, insbesondere für Traktoren
US20050280241A1 (en) * 2004-01-28 2005-12-22 Giorgio Bordini Suspended, articulated and powered front axle for work vehicle
JP2019205380A (ja) * 2018-05-29 2019-12-05 株式会社クボタ 作業機

Also Published As

Publication number Publication date
CH591968A5 (de) 1977-10-14
GB1518922A (en) 1978-07-26
JPS5297524A (en) 1977-08-16
IT1078205B (it) 1985-05-08
JPS5757309B2 (de) 1982-12-03
FR2341448A1 (fr) 1977-09-16
DE2706229A1 (de) 1977-08-18
FR2341448B1 (de) 1982-12-03
SU1015819A3 (ru) 1983-04-30

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